The pilot light went out a couple of weeks ago. Could reingnite it,
but it didn't flare when the hot tap was turned on. No hot water :-(.
There was also a leak coming from the left side of the unit. The low
pressure light was also lit. We called a plumber, he fixed it and
said we needed a new pump. He still hasn't come back to fix it yet.

Anyway...the ho****er is not working again - no leak this time. No low
pressure light. The boiler seems to flare, then for a second a trickle
of hot water, then just cold very low pressure water. I've spoken with
another plumber and he reckons it needs a descale, based on the fact
that the pressure is so low. He hasn't seen the boiler yet. Could this
be the problem? I've read in other threads that "descaling" is
something plumbers throw in to make more money.

Any opinions??

Lesley